Water-based intumescent fire barrier caulk

Details Water-based intumescent fire barrier caulk Water-based intumescent fire barrier caulk

1990-12-13

1992-12-29

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

521122, 521907, 523179, 523219, 252606, 2641761, C08J 916, C08J 932

Patent

active

051751976

ABSTRACT:
Water-based, intumescent, fire retardant material is made from, on a dry basis by weight, 100 parts of a latex such as polychloroprene latex and from 50 to 200 parts of water-insoluble intumescent mineral granules such as hydrated alkali metal silicate granules incorporating an oxy boron compound. This water-based intumescent material dries to an elastomeric state that has a Volume Expansion Factor (as defined) of at least two. It chars into a substantially rigid refractory thermal insulator to prevent fire from penetrating through voids into which the novel intumescent material has expanded.

REFERENCES:
patent: 3916057 (1975-10-01), Hatch et al.
patent: 4189619 (1980-02-01), Pedlow
patent: 4218502 (1980-08-01), Graham et al.
patent: 4229329 (1980-10-01), Bennett
patent: 4234639 (1980-11-01), Graham
patent: 4273879 (1981-06-01), Langer et al.
patent: 4434200 (1984-02-01), Fash et al.
patent: 4521333 (1985-06-01), Graham et al.
patent: 4666960 (1987-05-01), Spain
patent: 4952615 (1990-08-01), Welna

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